chore: sync upstream PR #8272 - fix(core): fix buildUrlParams array handling and replace deprecated substr

[riderx]

Upstream PR Sync

This PR syncs changes from an external contributor's PR on the official Capacitor repository.

Original PR

• PR: #8272
• Title: fix(core): fix buildUrlParams array handling and replace deprecated substr
• Author: @maniktyagi04

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Synced from upstream by Capacitor+ Bot

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📥 Commits

Reviewing files that changed from the base of the PR and between 63026cc and 761c728.

📒 Files selected for processing (2)

• core/src/core-plugins.ts
• core/src/tests/http.spec.ts

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[cursor]

Risk: low. Approved: narrow upstream bug fix for buildUrlParams array handling with added unit tests. Cursor Bugbot was not present on this PR; no reviewers assigned.

  

_{Sent by Cursor Approval Agent: Pull Request Approver}

[cursor]

Risk: low. Approved — narrow core bug fix for array URL params plus unit tests; Cursor Bugbot was not present on this PR. No reviewers assigned.

  

_{Sent by Cursor Approval Agent: Pull Request Approver External}